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RT9612A/B 是专为一般 MOSFET 驱动的应用和高性能 CPU VR 驱动能力设计的高频、同步整流的单相 MOSFET 驱动器,能使用于 VCC = 5V 或 VCC = 12V 的应用。RT9612A/B 内置一个内部电源开关来代替外部靴带式二极管。开关频率最高可达 500kHz。RT9612A/B 同时具有 UGATE 和 LGATE 的驱动电路,能支持同步整流 DC/DC 转换器的应用。驱动上升/下降时间皆在 30ns 之内,且击穿保护 (Shoot Through Protection) 是用来防止上下桥间功率开关的击穿现象。RT9612A/B 具有三态 PWM 输入和输入关机功能,可以强制驱动器输出变成高阻抗。RT9612A 和 RT9612B 的差异为传播延迟,tUGATEpdh。相较于 RT9612B,RT9612B 有较大的 tUGATEpdh。因此,RT9612A 通常被推荐用于高功率密度 CPU VR 或 GPU VR 等,效率导向的应用。RT9612A/B 提供 SOP-8、SOP-8 (散热焊盘)、WDFN-8EL 3x3 和 WDFN-8L 2x2 封装。
可驱动两个 N-MOSFET
适性击穿 (Adaptive Shoot-through) 保护
内嵌靴带式二极管
支持高操作频率
快速输出上升时间
Tri-State Input for Bridge Shutdown
SOP-8、SOP-8 (散热焊盘) 和 8-脚位 WDFN 封装
符合 RoHS 标准及不含卤素
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